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MAX6001EUR-T Datasheet(PDF) 10 Page - Maxim Integrated Products |
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MAX6001EUR-T Datasheet(HTML) 10 Page - Maxim Integrated Products |
10 / 12 page Low-Cost, Low-Power, Low-Dropout, SOT23-3 Voltage References 10 ______________________________________________________________________________________ Detailed Description The MAX6001–MAX6005 bandgap references offer a temperature coefficient of <100ppm/°C and initial accura- cy of better than 1%. These devices can sink and source up to 400µA with <200mV of dropout voltage, making them attractive for use in low-voltage applications. Applications Information Output/Load Capacitance Devices in this family do not require an output capaci- tance for frequency stability. They are stable for capac- itive loads from 0 to 2.2nF. However, in applications where the load or the supply can experience step changes, an output capacitor will reduce the amount of overshoot (or undershoot) and assist the circuit’s tran- sient response. Many applications do not need an external capacitor, and this family can offer a signifi- cant advantage in these applications when board space is critical. Supply Current The quiescent supply current of these series-mode ref- erences is a maximum of 45µA and is virtually indepen- dent of the supply voltage, with only a 0.8µA/V variation with supply voltage. Unlike shunt-mode references, the load current of these series-mode references is drawn from the supply voltage only when required, so supply current is not wasted and efficiency is maximized over the entire supply voltage range. This improved efficien- cy can help reduce power dissipation and extend bat- tery life. When the supply voltage is below the minimum speci- fied input voltage (as during turn-on), the devices can draw up to 200µA beyond the nominal supply current. The input voltage source must be capable of providing this current to ensure reliable turn-on. Output Voltage Hysteresis Output voltage hysteresis is the change in the output voltage at TA = +25°C before and after the device is cycled over its entire operating temperature range. Hysteresis is caused by differential package stress appearing across the bandgap core transistors. The typical temperature hysteresis value is 130ppm. Pin Description NAME FUNCTION 1 IN Supply Voltage Input 2 OUT Reference Voltage Output PIN 3 GND Ground Figure 1. Positive and Negative References from Single +3V or +5V Supply IN VS +2VS -2VS OUT +REF OUTPUT OUTPUT -REF OUTPUT 10nF 1M, 0.1% 1M, 0.1% GND MAX6001 MAX6002 MAX6003 MAX6004 MAX6005 VCC V+ GND MAX681 V- V+ V- ICL7652 |
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